Slag-disintegrating apparatus.



L. LARSON.

SLAG DISINTEGRATING APPARATUS.

APPLIUATION FILED DBO. 12, 1913. 1,103,886,

Patented July 14,1914,

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1,103,886, Patented July 14, 1914.

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L. LARSON. SLAG DISINTEGRATING APPARATUS. I APILIOATION FILED D110. 12, 1913.

Patented July 14,1914.

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tioaeea Specification of Letters r atent.

Patented July Ita 1914.

A lication filed December 12, 1913. Serial No. 806,204.

To'aZZ whom z'fima y concern Be it known that 1, Lens LARSON,- a citizen of the United States, and a resident of the city of Chicago, county of Cook, and State of Ellinois, have invented certain new and useful improvements in Slag-Disintegrating Apparatus, of whichthe following is a specification.

My invention relates to improvements in apparatus for disintegrating slag such as ac-' cumulates in smeltingfurnaces when in operation. I I

the object of-my'invention is the production of slag disintegrating apparatus as mentioned which will be of improved construction, apparatus in which the necessity of dampening or subjecting the same directly to the action of cold water in order to cool the-same will be obviated, and further apparatus which will be of durable and I economical construction and eflicient in oporation.

Uther objects will appear hereinafter. The invention consists in the combinations-and arrangements of parts hereinafter described andclaimed.

6 and 7 are perspective views of the scrap ing and removing devices employed in conjunction with the cooling trough of the apparatus for removing the slag therefrom.

in the preferred form of construction as illustrated in the drawings, 1 have illustrated the base .of a conventional cupola or smelting furnace 1; heading from thefu'rnace 1 is the usual slag conduit 2 which is adapted to convey the slag drawn from the furnace and deposit the same int-o areservoir 3,- the latter, in practice, being of comparatively large dimensions in order to adapt the same to serve as a sort of storage receptacle or chamber preparatory to running the same off into the cooling and disintegrating apparatus hereinafter described.

Leading from the reservoir 8 is a conduit 4 which communicates with an elongated trough 5 which is provided preferably with a metallic lining 6 as clearly shown in Fig at. Arranged adjacent toand extending parallel with the trough 5-is a second trough 7 separated from the former by a common wall 8. Communication between the troughs 5 and 7 is established through transversely extending openings or passages 9 in the wall 8 adjacent the bottom thereof. The openings 9 are arranged in sets, each set consisting of a plurality of said perforations which are of graduated dimensions or diameters as clearly shown in Fig. 8. These openings are controlled by an elongated plate or slide valve 10, the longitudinal edges of which are suitably mounted in guides provided at the side of the wall 8 registering with trough 5. The plate 10 is provided with spaced perforations 11 one of which cooperates. with each set of openings 9. "The arrangement is such, as will be observed that through sliding adjustment of said plate 10 each opening 11 may be brought into registration with anyone of thecorre sponding openings 9 in order to permit of the passage of the molten slag from the trough 5to the trough 7. By providing a plurality of openings 9 of graduated sizes the flow of molten slag from the trough 5 to the trough 7 may be regulated, it being clear that when the openings 11 are in regis-' tration with the smallest openings 9 a comparatively small amount of slag will be perinitted to flow from one trough to the other, the amount which is permitted to flow from one trough to the other being increased as the plate 10is moved into registration with the succeeding openings 9. The regulation of the. flow of molten slag from one trough to the other is of importance since the condition of the slag both asto its temperature and consistency continually varies, such variation necessarily affecting the. mobility 7 thereof. This sliding adjustment of the plate 10 is effected by means of an exteriorly projecting stem 12 provided at one end thereof upon which is threaded a hand wheel 13 which is held against longitudinal movement in a bracket 14, the arrangement being such that longitudinal. movement of i the plate will be secured upon rotation of b said hand wheel.

13 .other end of said chamber.

The bottom 15 of the trough 7 is longitudinally corrugated as clearly shown in Fig. 4 and formed under said bottom is a chamber 16 adapted to permit of the circulation of cold water introduced into said chamber through a pipe. 17 at one end thereof and discharged from said chamber through a drain pipe 18 provided at the Vith this arrangement, when the apparatus is in use the bottom 15 of trough 7 will be maintained continually in a cold condition so as to effect cooling of the slag which is introduced into said trough from the trough 5. By corrugating the bottom of the trough 7 the cooling surface with which the molten slag is brought into contact is increased thereby in- 2... creasing the efficiency of the cooling process.

The removal of the slag from the trough 7 after cooling and hence hardening thereof is effected by means ofmembers" 19 and 20 which are arranged in said trough for longitudinal movement therein. The member 20 is of rectangular form being of a height and width adapting the same to be snugly received inthe trough 7. The front and bottom of each of the members 20' are open, the remaining sides thereof being closed. vAr-' ranged within :'each member 20 is an obliquelydisposed blade 22 rigidly secured in position as by riveting. The blade 22 is so arranged that the .forward end thereof will be positioned adjacent the side-of the trough provided with the inlet openings 9, said blade being adapted, upon longitudinal movement of'the member 20 to operate in the manner of a plow to effect a uniform distribution of the slag over the bottom of the trough. W'ithout this arrangement the slag might accumulate at the side of the trough adjacent the entrance openings 9 and there-' fore result in over-taxing the corresponding sides of the scraping and removing devices.

'The blades 22 are ofa width less than the height of the buckets 20 so that if the slag accumulates in front of the same in too large quantities, it may pass over the upper edges inFig. 6 in order to adapt the same to more effectually scrape the bottom of the trough 7 in the operation of said members 20 in said trough, the edges 23,v as well as the lower edges of the blades 22 traveling in close proximity with the crests of the corrugations of the bottom 15 in-the operation of the apparatus. f

The members 19 are rectangular in form but are spaced above the bottom 15 as clearly of said blades and be caught up in the rear-.

shown in Fig. 1. Each of the members 19 is closed at all of its sides except the" front.

The bottom of each of the members 19 at the front end isprovided with a downwardly inclined extension 21' to which are rigidly secured the rearward ends of inclined scraper fingers 21 so spaced as to be adapted to engage in the grooves or recesses of the corrugations of the "bottom 15 in the movement of members 19 in trough 7 Said fingers 21 arethus adapted, in the operation of the apparatus, to effectually remove the -.slag from the grooves or recesses of the corrugationsof bottom 15, the slag which is thus removed being adapted to travel up wardly on said fingers and over the extension 21' and be collected in the members 19 as will be readily understood.

The members 19 and 20 are carrled by two spaced endless sprocket chains 24 which travel around sprocket wheels 25 suitably mounted at the respective'ends of the trough 7 said sprocket chains being preferably provided at the joints therein with rollers adapted to ride upon the upperedges of the longitudinal'walls of trough/Z as clearly shown in Figs. 1 and 2.. The members 19 and 20 are rigidly secured to the chains 24 by means of transversely extending bars 26 which project through .perforations provided in the lateral wallsof said members as clearlyshown in Figs. 6 and -'2'. Also cooperating with the members 19 and 2 0 are reinforcing rails 27 and 27 arranged in] spaced pairs, there being one pair arranged above the trough 7 and one pair arranged .below said trough as clearly shown in Fig. 1.

Provided upon the upper side ofeach of the members 19 and 20 is a pair of spaced rollers 28 adapted to contact with'the under side of rails 27, when said members are in operative position in the trough 7 and adaptedto engage against the upper sides of rails 27' when said members are inoperative and traveling under said trough as shown in Fig. 1. Contacting'with the opposite sides of said rails are rollers 29 carried in bearing housings 30 adjustably secured by nuts 31 to the outer ends of posts 32 which project perpendicular from the correspond ng sides of themembers 19- and. 20. The arrangement is such, as will be observed, that the members 19 and 20 will be securely held against tilting movement in a vertical lane extendin longitudinally of the troug the rails 2 vserving to counteract the strain upon said members 19 incident to the scraping and slag removing operation. The railsv 27' serve.

simply to prevent sagging of the under sides of the chains in the movement of the members 19 and 20 under the trough. Through the adjustment which is afforded throu h rotation of nuts 31, any lost motion may taken up and the rollers 28 and 29 held in i momma a disintegrating or crushing device 33 ar--- ranged below the dumping point of said members as clearly shown in Fig. 1. The crushing or disintegrating device 33 is of any approved design, and leading therefrom is an endless bucket conveyer or elevator wliich is adapted to convey the disintegrated slag passed through the device 33 and depositthe same into a storagechamber 35, fromv'hence the disintegrated slag may be withdrawn as desired for use. The various parts of the apparatus set forth'are sup ported by suitable frame work as shown so as to produce a firm and rigid construction. In the operation then of the apparatus the hot molten slag first flows from thefurnace or cupola 1 through the conduit 2 into the reservoir 3. From said reservoir the hot molten slag flows through conduit 4 into the distributing trough 5, whence it is intro.- duced through the -openings 9'which are controlled by slide valve 10 into the cooling trough 7. The bot-tom of trough 7 being "maintained in a cool condition through the circulation of cold water contacting with the under side thereof, the hot molten slag as the same is introduced into trough 7 will be cooled and therefore hardened by contact with said bottom. After cooling and hardening the slag will be removed from the trough 7 by the scraping and conveying de- Q admitted to said trough; and means adapted to enter one end of said trough, travel longitudinally of the latter. and pass out 1 .13

vices 19 and 20 which will carry the slag in large. non-unlform chunks or pieces toward one end -of the trough and discharge the same into the disintegrating device 33, whence the same, after disintegration, will be deposited in a storage. chamber by the conveyor or elevator 34.

While I have illustrated and described the preferred form of construction for carrying my invention into eii'ect, this is capable of variation and modification Without departing from the spirit of the invention. T,

' therefore, do not wish to be limited ,to the precise details of construction set forth, but 1 desire to'avail myself of such variations and modifications as come within the scope of the appended claims.

Having described my invention what I claim as new and desire to secure by Letters Patent is:

1. Apparatus of the class described comprisin a trough; means for admitting the material to be treated to said trough; means substantially as described.

arranged in the oottom of said trough for cooling the material admitted to said trough, said trough being longitudinally corrugated; and means for removing the contents of said trnugh, substantially as described.

2. Apparatus of the class described comprising a trough; means for admitting the material to be treated to said trough; means arranged in the bottom of said trough for cooling the material admittedto said trough,

said trough being longitudinally corrugated;

and means movable longitudinally of said trough for removing the contents thereof, substantially as described.

' 3. Apparatus of the class described comprising a trough; means for admitting the material to be treated to said trough; means for cooling the material admitted to said trough; and means mounted in said trough for longitudinal movement in one direction for removing the contents of said trough,

4. Apparatus of the class described comprising an elongated trough; means for admitting the material to be treated to said trough at variouspoints along its length;

means for cooling the material admitted to said trough; and means for removing the contents of said trough, substantially as described.

- 5. Apparatus of the class'described comprising an elongated trough; means for admitting material to be treated to said trough at various points along its length and adjacent the bottom of said trough; meansfor cooling the material admitted to said trough; and means for removing the contents of said trough, substantially as described.

6. Apparatus of the class described comprising a trough open at both ends; means for admit-ting the materialto be treated to said trough; means for cooling the material through the opposite end of said trough, for

7. Apparatus of the class described comprising a trough; means for cooling the conitcnts of said trough; and means for removing from said trough the contents thereof, isaid removing means comprising a bucket anovable longitudinally of said-trough, substantially as described.

8. Apparatus of the class described comprising a trough; means for cooling the bot' tonrof saidtrough,- said trough bottom being longitudinally corrugated; 'and means movable longitudinally of said trough and engaging in the grooves of the corrugations of said bottom for removing from said trough thecontents thereof, substantially as described.

9. Apparatus of the class described comi removing the contents of the latter, substanv tially as described. a

Iii-e prising a trough; means for cooling the bottom ofsaid trough, said trou h bottom being longitudinally corrugated meaLnsfor removing from -said trough the contents .of the bottom of each of the last mentioned buckets being inclined downwardly into close proximity with the bottom of-thc the contents of said trough, said removing less element carrying said means comprising a plurality ofscraper members adapted to travel through said trough longitudinally thereof; and an endscraper members, substantially as described. 14. Apparatus of the class described comprising a trough; means-for cooling the contentsof saidtrou'gh; means for removing the contents of said trough, said removing means comprising a plurality of spaced element carrying said scraper members 'remforcmg guide ralls for said scraper mem-" means comprising a plurality of spaced buckets movable in said trough longitudinally thereof; andendless chains carrying.

thereof, said removing means comprising a said buckets,substantially as described.

bucket movable longitudinally of said 16. Apparatus of the class described comtrough; and means at the front end of said prising a trough;'means for coolingthe conbucket for engaging the grooves of the cortents of said trough; v means for removing] rugations of said bottom, substantially as the contents of said trough, said removing 10 described. means comprisin a plurality of spaced 75 10. Apparatus of the class described Icombuckets movable in said trough longitudiprisin a trough; means for cooling the botjnally thereof; and endless chains carrying tom of said trough, said trough bottom besaid buckets and passing around sprocket ing longitudinally corrugated; means for 'rewheels provided at the ends of said trough, moving from said trough the contents there said buckets being so arranged upon said 30 of, said removing means comprising a chains that the same will be dumped as they bucket movable longitudinally of said pass around said sprocket wheels, substantrough; and fingers at the front end of said tially as described. Y bucket for engaging the grooves of the cor-- Apparatus of the class described comrugations of said bottom, substantially as p 'ls g a ug means I1g h c n- 5 described tents of said trough; means for removing j 11. Apparatus of the class described comthe contents of said trough, said removing prising a trough; meansfor cooling the botmeans comprising a plurality of scraper tom of said trough,'said trough bottom bemem er adapt d; to avel hrough Said I ing longitudinally corrugated; means for trough longitudinally thereof; an endless 90 removing from said trough the contents element carrying said scraper members; thereof, said removing means comprising a and. reinforcing rails for guiding said bucket movable longitudinally of said scraper members, substantially as described. trough; and spaced forwardly inclined fin- 18. Apparatus of the class describied comgers at the front end of said bucket vfor enprising a trough; means for cooling the con-' 5 gaging the grooves of the corrugations of tents of said trough;.means for removing said bottom, substantially as described. the contents of saidtrough, said removing 12. Apparatus of the class described commeans comprising a plurality of spaced prising a trough; means for cooling the com buckets movable in said trough longitudi tents of [said trough; means forremoving nally thereof; endlessv chains carrying said 109 1 from said'trou'gh'the contents'thereof, said buckets; and reinforcing rails for guiding removing means comprising a plurality of said buckets, substantially as described. buckets movable in said trough longitudi- 19.,Apparatusof the'class described comnally thereof, certain of said buckets being prising atrough;'me ans for cooling the con- 40 open at their forward ends, the forward end tents of said trough; means for removing the contents of said trough, said removing means comprising a plurality of scraper members adapted to travel through said trough longitudinally thereof; an endless bers; and means on said scraper members 1 engaging against opposite sides of said rails for preventing tilting of said members in .a 1 vertical longitudinal plane relative to said rails, substantially as described. I i

- 20. Apparatus of the class describedicom prising a trough; means forcooling the contents of said trough; means for removing the contents of said trougl1,--said removingfnc means comprising a plurality of scraper and carrier ,members -movable in said trough longitudinally thereof; endless chains car- 6 tents of said trough; means for removing buckets movable in said troughfllongitudirying said members; reinforcing guide. rails. v

nally thereof; and endless elements for movforsaid members; and means on said mem- 125 ing. said buckets in said trough, substantially bers engaging against opposite sides of said rails for preventing tilting of said members in a vertical longitudinal plane relative to said, rails, substantially as des ribed; 21. Apparatus oft he class escribed comas described.' v

15. Apparatus of the class described com prising a trough; means for cooling the conprising a trough; means for cooling the contents of said trough; means for removing the contents of said trough, said removing means comprising a plurality of scraper and carrier members movable in said trough longitudinally thereof; endless elements carrying said members; reinforcing guide rails for said members; and rollers on said members engaging against opposite sides of said rails for preventing tilting of said members in a vertical longitudinal plane relative to said rails, substantially as described.

22. Apparatus of the class described comprising a trough; means for cooling the contents of said trough; means for removing the. contents of said trough, said removing means comprising a plurality of scraper and carrier members movable in said trough longitudinally thereof; endless elements carrying said members; reinforcing guide rails for said members; and rollers adjustably mounted on said members engaging against opposite sides of said rails for preventing tilting of said members in a vertical longitudinal plane relative to saidrails, substan-' tially as described. 23. Apparatus of the clss described comprising a trough; a second trough arranged substantially parallel with said first men tioned trough, said troughs communicating with each other at intervals along their lengths; and means for controlling the communication between said troughs, substantially as described,

24. Apparatus of the class described comprising a trough; a second trough arranged alongside of said first mentioned trough, bottom portions of said troughs communieating with each other at intervals; and means for controlling the communication between said troughs, substantially as described.

25. Apparatus of the class'described com prising a trough; a second trough arranged substantially parallel with said first mentioned trough and separated therefrom by a common wallgsaid wall having openings adjacent its lower edge establishing commu-v nication between said troughs; and means for controlling the passage through said openings, substantially as described.

26. Apparatus of the class described comprising a trough; a second trough arranged prising a trough; a second trough arranged substantially parallel with said first mentioned trough and separatedtherefrom by a common-wall, said wall having a plurality adjacent its lower edge establishing com-v munication between said troughs, said openmgs being arranged 1n sets;each of said sets consisting of a plurality of openings of. graduated sizes; and a slidably mounted plate having an opening arranged for co- Operation with each set of said Wall'openings for controlling the flow therethrough, substantially asdescribed.

29. Apparatus of the class described comprising a trough, said trough having admission openings at one side-thereof; means for cooling the contents of said trough; means for removing the contents of said trough after cooling, said removing means comprising a plurality of spaced scraper and conveying members movable in said trough longitudinally thereof, certain of said members being open at their front and bottom sides; and an obliquely disposed transverse blade positioned in each of said last mentioned members adapted for travel in close proximity with the bottom of the trough, the forward end of said blade being positioned adjacent the admission openings of said trough, substantially as described.

30. Apparatus of the class described comprising a trough, said trough having admission openings at one side; means for cooling the contents of said trough; means for removing the contents of said trough after cooling, said removing means comprising aplurality of spaced scraping and conveying members movable in said trough longitudinally thereof; and means for uniformly distributing the contents of said trough over the bottom thereof upon the operation of said scraping and conveying members, substantially as described.

31. Apparatus of the class described comprising a. collecting trough; a second trough; a. communication between said;

troughs; means for cooling the substance admitted to said second trough; a disintegrating device arranged below one end of" said trough; means'movable longitudinally of said second troughfor loosening the con tents thereof and conveying the same towardits trough; a duct. leading fromsaid reservoir to said trough; a second trough arranged substantially coextensive therewith; a communication between said troughs; means for coolir'ig the substance admitted to said seconditrough; a disintegrating device arranged below one end of said second trough means movable longitudinally of said second trough for loosening .the contents thereof and conveying the same toward one end of said trough and deposltmg the same intosald disintegrating device; a storage chain:-

her; and an elevator for conveying the disintegrated substance acted upon by said disintegrating device from the latter to said storage chamber, substantially as described. In testimonyvwhereofl have signed my name to this specification in the presence of two subscribing witnesses. 1

LARS LARSON.- Witnesses:

' -JOSHUA R. H. PO'I'IS,

HELEN F. LILLIS. 

